Home / 727,381.88-1,091,072.76-278,148.19

Finding the Fourth Proportional to 727,381.88, 1,091,072.76 and 278,148.19

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Solution

The fourth proportional to 727,381.88, 1,091,072.76 and 278,148.19 is: 417,222.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,381.88 : 1,091,072.76 = 278,148.19 : x
  2. Step 2: Convert to fraction form
    727,381.88/1,091,072.76 = 278,148.19/x
  3. Step 3: Cross multiply
    727,381.88x = 1,091,072.76 × 278,148.19
  4. Step 4: Simplify right side
    727,381.88x = 303,479,909,581.57
  5. Step 5: Solve for x
    x = 303,479,909,581.57/727,381.88
  6. Step 6: Final answer
    x = 417,222.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.